/*
 * @Description: 父类
 * 
 * @Author: rendc
 * 
 * @Date: 2025-07-31 14:13:43
 * 
 * @LastEditors: rendc
 * 
 * @LastEditTime: 2025-07-31 14:16:48
 */

public class Animal {

  public static int num = 0;

  public static void showNum() {
    System.out.println("num:" + num);
  }

}